Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

gcc: add Apple compatible -Wnewline-eof

GCC 4.2 and previous have always warned about
"No newline at end of file".

Upstream GCC removed the warning completely but
Apple made it an optional warning. Adopt it for
compatibility with older GCC and clang.

While here, add comment to complement r258712.

Obtained from: Apple Inc. (Apple GCC 4.2 - 5531)
MFC after: 1 week

gcc: Bring updates from Google's enhanced gcc-4.2.1.

Google released and enhanced version of gcc-4.2.1 plus their local
patches for Android[1].

The patches are owned by Google and the license hasn't been changed
from the original GPLv2. We are only bringing a subset of the
available patches that may be helpful in FreeBSD. Changes specific
to android are not included.

From the README.google file[1].

Patches applied to google_vendor_src_branch/gcc/gcc-4.2.1:

gcc/Makefile.in
gcc/c-common.c
gcc/c-common.h
gcc/c-opts.c
gcc/c-typeck.c
gcc/cp/typeck.c
gcc/doc/invoke.texi
gcc/flags.h
gcc/opts.c
gcc/tree-flow.h
gcc/tree-ssa-alias-warnings.c
gcc/tree-ssa-alias.c

Backport of -Wstrict-aliasing from mainline.
Silvius Rus <rus@google.com>

gcc/coverage.c:
Patch coverage_checksum_string for PR 25351.
Seongbae Park <spark@google.com>
Not yet submitted to FSF.

gcc/c-opts.c
gcc/c-ppoutput.c
gcc/c.opt
gcc/doc/cppopts.texi
libcpp/Makefile.in
libcpp/directives-only.c
libcpp/directives.c
libcpp/files.c
libcpp/include/cpplib.h
libcpp/init.c
libcpp/internal.h
libcpp/macro.c
Support for -fdirectives-only.
Ollie Wild <aaw@google.com>.
Submitted to FSF but not yet approved.

libstdc++-v3/include/ext/hashtable.h
http://b/742065
http://b/629994
Reduce min size of hashtable for hash_map, hash_set from 53 to 5

libstdc++-v3/include/ext/hashtable.h
http://b/629994
Do not iterate over buckets if hashtable is empty.

gcc/common.opt
gcc/doc/invoke.texi
gcc/flags.h
gcc/gimplify.c
gcc/opts.c
Add Saito's patch for -finstrument-functions-exclude-* options.

gcc/common.opt
gcc/doc/invoke.texi
gcc/final.c
gcc/flags.h
gcc/opts.c
gcc/testsuite/gcc.dg/Wframe-larger-than.c
Add a new flag -Wframe-larger-than- which enables a new warning
when a frame size of a function is larger than specified.
This patch hasn't been integrated into gcc mainline yet.

gcc/tree-vrp.c
Add a hack to avoid using ivopts information for pointers starting
at constant values.

Reference:

[1]
https://android.googlesource.com/toolchain/gcc/+/master/gcc-4.2.1/

Obtained from: Google Inc.
MFC after: 3 weeks

Add support for the GCC binary integer constants extension.

This is required to build the i965 backend with newer versions of mesa.

Original patch from Joerg Wunsch in GCC Bug 23479, under the GPLv2;
also taken from there in OpenBSD.

Obtained from: gcc 4.3 (rev. 125346; GPLv2)
MFC after: 5 days

Add support for "d" floating-point suffix, as defined by draft N1312
of TR 24732. Emit pedantic warning if the feature is being used.

Should solve GCC bug 39027.

Obtained from: OpenBSD
MFC after: 2 weeks

Add support for __COUNTER__.

__COUNTER__ allows one to obtain incrementing (read: unique) numbers
from the C preprocesor. This is useful when implementing things like a
robust implementation of CTASSERT(), which currently fails when using
it more than once on a single line of code. Probably not likely to cause
any breakage, but still.

__COUNTER__ was also added to GCC 4.3, but since that implementation is
GPLv3 licensed, I took the liberty of implementing it without looking at
any upstream sources. Therefore, this version is licensed under the same
license as the rest of the code; GPLv2.

This commit was generated by cvs2svn to compensate for changes in r169695,
which included commits to RCS files with non-trunk default branches.

GCC 4.2.0 release miscellaneous support libraries.